Does anyone know how many streams Butter got in the US on YouTube?

I don't know, I don't know how to find out either.

YouTube charts has a very slight update counting 2.64m US streams for it on their artist page but it's not up to date with the recent numbers (since the global stat on their page only says 31.1m)

maybe myaza can answer that

Quote from Flowercrew

maybe myaza can answer that

These figures are not public until YT charts are out. And then its weekly.